Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Piotr Wach"'
Autor:
Piotr Wach
Publikováno v:
SN Applied Sciences, Vol 5, Iss 1, Pp 1-13 (2022)
Abstract The paper presents the problem of the relation between ac voltage frequency supplying a circuit and the resulting current frequency in that circuit in the case when the voltage frequency changes smoothly following a $${f}_{{v}}\left(t\right)
Externí odkaz:
https://doaj.org/article/cc512aa346b5422493951a82f30ed48b
Autor:
Piotr Wach
Publikováno v:
Archives of Electrical Engineering, Vol vol. 67, Iss No 2 (2018)
Maximum Torque Control (MTC) is a new method applied for control of induction motor drives. The drive is controlled by dc voltage supplying a converter in the range below nominal speed and by a field that weakens for a speed range above the nominal s
Externí odkaz:
https://doaj.org/article/abb5f2b94f5b432da80939b290412a12
Publikováno v:
Problemy Mechatroniki, Vol 6, Iss 3, Pp 85-100 (2015)
The paper presents a method for evaluating the quality of the layers in relation to the methods of manufacturing aerological systems on internal and external surfaces of a pipe applicable to production of barrels of small arms. For example, research
Externí odkaz:
https://doaj.org/article/4d93b820b71c4501be7e8dad20432427
Publikováno v:
Inżynieria Powierzchni. 25:20-30
In the present work technical nitrogen application for surface activation of alloyed steels with chrome, particularly stainless steel X20Cr13 during nitriding and carbonitriding was investigated .Hardness and microstructure of nitrided layers were ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d83865234956849bd655a64080c27e03
https://doi.org/10.5604/01.3001.0014.4476
https://doi.org/10.5604/01.3001.0014.4476
Publikováno v:
Inżynieria Powierzchni. 24:31-36
The study examined cylindrical samples made of low-alloy structural steel 42CrMo4 (40HM) and 41CrAlMo7 (38HMJ) subjected to the nitriding process at 540oC during 2, 7, 12 and 17 hours. During the first 2 hours of the process, the atmosphere was ammon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d16a506e3fa1ed7224d9f36bbb1b2ed
https://doi.org/10.5604/01.3001.0013.9729
https://doi.org/10.5604/01.3001.0013.9729
Publikováno v:
Inżynieria Powierzchni. 24:17-21
The subject matter of the article are tribological and material tests of gas-nitrided constructional steels, including 38HMJ and AISI52100, cooperating frictionally with C45 toughened steel or 100Cr6 hardened steel. All friction tests were carried ou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a246057477c7cacb47a1fe3f1d65688
https://doi.org/10.5604/01.3001.0013.5780
https://doi.org/10.5604/01.3001.0013.5780
Publikováno v:
Inżynieria Powierzchni. 24:44-49
W artykule omówiono wyniki badań realizowanych w projekcie „TANGO”, „Innowacyjne warstwy azotowane nowej generacji o podwyższonej odporności korozyjnej wytwarzane na elementach maszyn”. Celem projektu było m.in. opracowanie technologii a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58cdb1e5a48525ba975914d97d3d6997
https://doi.org/10.5604/01.3001.0012.7678
https://doi.org/10.5604/01.3001.0012.7678
Publikováno v:
Inżynieria Powierzchni. 23:24-29
In industrial applications of thermo-chemical treatments, gas nitriding is a widespread method of nitriding. Machine parts and tools of various shapes and sizes are nitrided, including drills, cutters, dies, shafts, rings, bearing balls, etc. often c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2cc3988784e666093341548f33f85782
https://doi.org/10.5604/01.3001.0012.2091
https://doi.org/10.5604/01.3001.0012.2091
Autor:
Władysław Harmata, Piotr Wachna
Publikováno v:
Biuletyn Wojskowej Akademii Technicznej, Vol 72, Iss 4, Pp 73-90 (2023)
The review article deals with the current issue of collective protection, including collectiveprotection against contamination. A breakdown by purpose and basic equipment for use incontamination conditions is presented. Based on NATO documents, funct
Externí odkaz:
https://doaj.org/article/24b5265a4d654e30869373a2a449f9c7
Publikováno v:
Archives of Materials Science and Engineering. 2:59-67
Purpose: The effects of laser processing parameters on the dimensions of simple laser tracks, produced on the previously nitrided layer, were analysed. Design/methodology/approach: Gas nitriding is one of the most commonly used thermochemical treatme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c63db9d9975a8bd222a3fc9b765eabfd
https://doi.org/10.5604/01.3001.0010.8040
https://doi.org/10.5604/01.3001.0010.8040